Cylinder 5 - Injector Restricted

Where it lives

For P02AC, the part to look at first is the injector named here. The description of P02AC puts it on cylinder 5.

Check these first

• A clogged or dirty cylinder 5 fuel injector
• Low fuel pressure from a weak pump
• A clogged fuel filter
• Corrosion in the injector 5 connector
• A failing PCM injector driver

What to do next

1. Run an injector balance test on cylinder 5
2. Check fuel pressure and replace a clogged filter
3. Inspect the injector 5 connector and wiring for corrosion
4. Run a fuel injector cleaner through the system
5. Replace injector 5 if the spray pattern is poor
6. Clear the code and retest

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